MCP121T-315E/TTVAO

Product Overview

Category

The MCP121T-315E/TTVAO belongs to the category of voltage supervisors.

Use

It is used to monitor the power supply voltage and provide a reset signal to the microcontroller or other digital system in the event of a power failure or voltage drop.

Characteristics

• Package: SOT-23-3
• Essence: Voltage supervisor with manual reset input
• Packaging/Quantity: Tape and Reel (3,000 units per reel)

Specifications

• Voltage Threshold: 3.15V
• Manual Reset Input: Active-low
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 1.0V to 5.5V
• Quiescent Current: 6 µA (typical)

Detailed Pin Configuration

1. VDD (Supply Voltage)
2. GND (Ground)
3. MR (Manual Reset Input)

Functional Features

• Monitors the power supply voltage
• Provides a reset signal when the voltage drops below the threshold
• Manual reset input for external control

Advantages

• Low quiescent current
• Wide supply voltage range
• Small package size

Disadvantages

• Limited to monitoring single power supply voltage

Working Principles

The MCP121T-315E/TTVAO continuously monitors the supply voltage. When the voltage drops below the preset threshold, it asserts the reset signal to the connected digital system. The manual reset input allows external control over the reset function.

Detailed Application Field Plans

The MCP121T-315E/TTVAO is commonly used in embedded systems, IoT devices, and battery-powered applications where reliable power supply monitoring is essential. It ensures proper operation and system integrity by providing a reset signal during power fluctuations.

Detailed and Complete Alternative Models

• MAX809
• ADM811
• TPS3808

In conclusion, the MCP121T-315E/TTVAO is a voltage supervisor with a low quiescent current, wide supply voltage range, and a small package size. It is widely used in various electronic applications to ensure the stability and reliability of digital systems.

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